A tape measure comes with several markings that some may not know, like the black diamonds. Here's what those symbols mean and how you can use them.

If you've ever wondered what the black diamonds on a tape measure are for then you're not alone - and people have taken to the internet to find out.

Maybe you're aware of them but just don't know what exactly they're there for, such as the black diamonds on a tape measure. Another example is the hole that's usually found at the end of a tape ...

Have you ever found yourself perplexed by the black diamonds on a tape measure, wondering whether they're actually there for a reason? You're not the only one puzzled by these mysterious symbols ...